January in Caltanissetta averages a daily high of 9.1°C. Expect roughly 11 wet days totalling 77.1mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Caltanissetta is May–September.
Based on ENNA, IT (21.3km), 1995–2024. 15 years of January data.